Ernst traugott leutiiold



(No Model.)

B. T. LEU'IIHOLD. ADJUSTABLE SHELF SUPPORT.

' No. 510,804. Patented Dec. 12, 1893.

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ERNST TRAUGOTT LEUTHOLD, OF DRESDEN, GERMANY.

ADJUSTABLE SHELF-SUPPORT.

SPECIFICATION forming part of Letters Patent No. 510,804, dated December 12, 1893.

Application filed March 21, 1893. Serial No. 467,062- (No model.)

To all whom it may concern:

Be it known that I, ERNST TRAUGOTT LEUT- H OIJD, a subject of the King of Saxony, re: siding at Dresden, Saxony, Germany, have Invented certain new and useful Improvements in Apparatus for Raising and Lowering Shelves, &c., of which the following is a specification.

The subject matter of the present invention is an apparatus for the adjustment of the shelves in closets, book cases and other s1m1lar structures that are divided into parallel compartments.

The object of the invention is to make it possible to move the shelves upward and downward by means of one handle only, without requiring the removal of the objects located on the shelves. In order to attain this ObJBCli the shelves are fixed to angular bearers at their ends and these bearers glide over the two side pieces of the closet or book case and are fixed by means of a wedge piece catching into a toothed railing and released therefrom to-adjust the same.

The invention is illustrated in the annexed drawings in which- Figure 1, shows a perspective view of a shelf in a book case provided with the new device. Fig. 2, represents a perspective View of the sliding angular bearing fixed to the corresponding side piece. Fig. 3, is a section of the side Wall of the book ,case following the line x0c of Fig. 2.

The shelf B rests with its ends upon two bearings that consist of sheet metal bent at right angles or of a piece of cast iron having the same shape. The larger surface 0 of the bearings is parallel to the corresponding side piece S, of the book case and glides over a railing a provided with slanting teeth. In order to secure a precisely parallel sliding of the bearings and to prevent any other motion than a vertical motion the railing a is provided with a deep groove b which is either cut into the same, if said railing is heavy enough, or as in Fig. 3, is formed by a separate angular railing i. The front edge of the angular bearing which is bent at right angles to the surface 0 catches into the groove or way. The lower horizontal surface 01 of the angular bearing is provided withawedge piece e the head of which projects through a slit in the surface 0 wherein it has a little play; the shape of the wedge piece corresponds with the slanting teeth of the railing at. A spring 71. presses against the piece and has the tendency to keep it always engaged with the toothed railing a. A pin g provided with a push but-ton passes through the fore part of the shelf at convenient place and protrudes outside. The rear end of said pin fits in a corresponding hollow in the wedge piece so that when the pin is pushed in so as to release the wedge piece no displacement can take place.

The apparatus is used in such a way that by pressing upon the knob of the pin g the Wedge piece releases the toothed railing at so that the shelf can be pushed upward or downward according to the wishes. When the pin 9 is released the spring h pushes the wedge piece e forward again and the latter will again engage with the toothed railing at. As a consequence of the peculiar construction of the angular bearing and especially of the safe guiding of the same furnished by the grooves 12 of the railinga the shelves can be easily moved parallel to themselves, so that it is impossible, even when no attention is paid, not to put a shelf straight. From this arrangement it will be seen that the angular bearing or bracket is supported against vertical displacement by the wedge piece while the flange of the bracket fittingin the groove of the toothed railing serves to prevent the bracket from tilting or the rear end from falling down. In this way the shelf is held firmly and no rear support is necessary.

I claim-- 1. In combination, the side pieces of the case, the toothed railing secured thereto, the angular brackets, the wedge pieces carried by the brackets to engage the toothed railings, said brackets having vertical flanges fitting in vertical grooves to hold the bracket against tilting movement, substantially as described.

2. In combination, the side pieces of the In witness whereof I have hereunto set my hand in presence of two witnesses.

ERNST TRAUGOTT LEUTHOLD.

Witnesses:

HERNANDO DE 80%, OSKAR BADER. 

